SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is exploring other galaxies difficult?
A
Scientists are unsure of there locations
B
They would take thousands of years to reach
C
Spacecrafts would collapse under the air pressure
D
Instruments would not function because of the low temperature.
Explanation: 

Detailed explanation-1: -Astronomers have long been trying to answer this question by detecting radio signals emitted by nearby galaxies. However, these signals become weaker the further away a galaxy is from Earth, making it difficult for current radio telescopes to pick up.

Detailed explanation-2: -The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.

Detailed explanation-3: -Travel Time To get to the closest galaxy to ours, the Canis Major Dwarf, at Voyager’s speed, it would take approximately 749, 000, 000 years to travel the distance of 25, 000 light years! If we could travel at the speed of light, it would still take 25, 000 years!

Detailed explanation-4: -Living inside the Milky Way gives us a close-up view of its structure and contents, which we can’t do for other galaxies. At the same time, this perspective makes it difficult for astronomers to obtain a complete picture of galactic structure.

Detailed explanation-5: -Our galaxy, including everything, has recently been measured to be one million light-years in diameter. The nearest galaxy is 2.5 million light-years away. Most galaxies are more 100 million light-years away. Light takes too long even if we could achieve that impossible speed.

Detailed explanation-6: -“To understand the shape of the galaxy, you need to know where the individual stars are. But the stars are very far apart and very far away, and to accurately measure their positions in three dimensions requires extreme precision.”

There is 1 question to complete.